Salary plays no effect on who gets a card in the draft or in the waiver claims beyond whether you can afford him during waivers.
On the draft, its not a snake or anything like that. Everybody gets their choices as long as no one else puts any of their cards on their draft card. If multiple people choose that same player, regardless of card salary, one of them randomly gets the pick and the others get someone else of same position and similar but less than or equal to salary. Thats the advantage to drafting the higher salary so you get a better replacement if you miss.
Check out the example here
https://365.strat-o-matic.com/help/rule ... ll#rankingOn waivers, they weight the picks you lost. The weighting depends on the league and the minimum number of players you must draft. For ATG where you need to draft 24, you would get 24 points for missing on your 1st pick and and 1 point for missing your 24th pick. Whoever has the most "points" after the draft gets first waivers. So you might only miss out on a few cards but if they are your first 4 picks then you will still get a good waiver spot. Again, its card rank only, no salary.
This is all listed and explained in great detail, with examples, in the rules.